I signed up for a "comedic acting" class recently for similar reasons -- it really has helped to have something other than writing (specifically something social and out of my house, but not too stressful for this introvert because the conversations are literally scripted...) to stretch my brain in a different direction. https://medium.com/modern-marriage/scientists-warn-of-a-friendship-recession-im-part-of-it-38a87a5c27d